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Newsletter Issue No. 1177
June 12, 2025 Shimano Releases Q’AUTO: Self-Powered Di2 Automatic Shifting for Everyday Bikes Jim’s Tech Talk By Jim Langley According to Wikipedia, Shimano first released a Di2 electronic shifting system in 2001 but they didn’t make it available to the public until 2009. In case you didn’t know, Di2 stands for Digital Integrated Intelligence. 2009…
Newsletter Issue No. 1108
February 15, 2024 More On Gearing And Crankarm Length Jim’s Tech Talk By Jim Langley It was so nice of many of you to weigh in on our discussion regarding whether bicycle gearing is affected by crankarm length, which was the technical question we attempted to provide help with last week. Thank you for the…
Newsletter Issue No. 1198
November 6, 2025 Quick Review: NoNormal Outdoor Coffee Jim’s Tech Talk By Jim Langley It’s no secret that many cyclists love coffee. It’s probably the reason group rides often start or stop at coffee shops, why some events hand out freshly brewed java and why caffeine is in certain energy foods – as just a…
Newsletter Issue No. 901
February 13, 2020 PDF version for Premium Members is here. How to Do Endurance Training Correctly By Coach John Hughes Effective training results from riding in the proper zones (plural). One of the biggest mistakes my new clients made before working with me was always riding at about the same level of effort. (The other…
Newsletter Issue No. 1206
January 8, 2026 Calvin Jones Retiring After 28 Years As The Director of Education At Park Tool Jim’s Tech Talk By Jim Langley Below is Park Tool’s press release about every bike mechanic’s guru at Park Tool, Calvin Jones and his upcoming retirement. I thought it was important news to share because I bet like…
Newsletter Issue No. 1119
May 2, 2024 Muc-Off Nano Tech Bike Cleaner Product Review Jim’s Tech Talk By Jim Langley The reason I’m reviewing Muc-Off’s Nano Tech Bike Cleaner is because of another cyclist who was tent camping at a pretty cool little campground we were at in Southern California. The campground is just a few miles up the…